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Natural Hazards

, Volume 78, Issue 2, pp 1469–1480 | Cite as

Assessment of the ground motion levels for the Vrancea (Romania) November 1940 earthquake

  • Florin PavelEmail author
  • Radu Vacareanu
Short Communication
  • 151 Downloads

Abstract

This short paper focuses on the evaluation of the ground motions levels likely experienced in ten cities seriously damaged during the November 1940 intermediate-depth Vrancea (Romania) earthquake (M W = 7.7). In the first step of the analysis, the ground motion levels are evaluated using a recently developed ground motion model (Vacareanu et al. in J Earthq Eng 19(3):535–562, 2015) for the Vrancea intermediate-depth seismic source. Next, the stochastic method of simulation (Boore in Pure App Geophys 160:635–676, 2003) is employed in the same purpose. In order to include the nonlinear soil effects into the results of the stochastic simulations, a dedicated amplification function is derived from the ground motions recorded during two large magnitude Vrancea earthquakes in 1986 and 1990. The results obtained for the November 1940 Vrancea earthquake show that the largest spectral ordinates are obtained when the nonlinear soil effects are taken into consideration, while the peak ground accelerations are in almost all cases in excess of 0.15 g. In addition, the results for Bucharest are validated through a site-specific response analysis performed using a soil profile from the literature. This site response analysis for the 1940 seismic event reveals long-period spectral amplitudes, similar to the ones observed in Bucharest during the Vrancea 1977 earthquake.

Keywords

Hypocentral distance Spectral accelerations Stochastic simulations Ground motion model Nonlinear soil effects 

Notes

Acknowledgments

The stochastic simulations were performed with the software SMSIM, version 3.80 (www.daveboore.com). Funding for this research was provided within BIGSEES Project by the Ministry of National Education (MEN) under the Grant Number 72/2012. This support is gratefully acknowledged. The constructive feedbacks from two anonymous reviewers are greatly appreciated as they have helped us to improve considerably the quality of the manuscript.

References

  1. Anderson JG, Hough SE (1984) A model for the shape of the Fourier amplitude spectrum of acceleration at high frequencies. Bull Seismol Soc Am 74:1969–1993Google Scholar
  2. Beles A (1941) The earthquake and the buildings (in Romanian). Bull Soc Polit 10–11:1045–1211Google Scholar
  3. Bokelmann G, Rodler FA (2014) Nature of the Vrancea seismic zone (eastern Carpathians)—new constraints from dispersion of first-arriving P-waves. Earth Planet Sci Lett 390:59–68CrossRefGoogle Scholar
  4. Boore DM (2003) Simulation of ground motion using the stochastic method. Pure Appl Geophys 160:635–676CrossRefGoogle Scholar
  5. Boore DM (2005) SMSIM—Fortran programs for simulating ground motions from earthquakes: version 2.3—a revision of OFR 96-80-A. U.S. Geological Survey Report OFR 00–509Google Scholar
  6. Boore DM, Joyner WB (1997) Site amplifications for generic rock sites. Bull Seismol Soc Am 87(2):327–341Google Scholar
  7. Boore DM, Di Alessandro C, Abrahamson NA (2014) A generalization of the double-corner-frequency source spectral model and its use in the SCEC BBP validation exercise. Bull Seismol Soc Am 104(5):2387–2398CrossRefGoogle Scholar
  8. Choi Y, Stewart JP (2005) Nonlinear site amplification as function of 30 m shear wave velocity. Earthq Spectra 21(1):1–30CrossRefGoogle Scholar
  9. Contantinescu L, Enescu D (1985) The Vrancea earthquakes from scientific and technologic point of view (in Romanian). Ed Academiei, Bucharest, RomaniaGoogle Scholar
  10. Demetrescu G, Petrescu G (1941) The earthquake of November 10, 1940. Macroseismic map. (in Romanian). Bucharest Observatory, Seismic StationGoogle Scholar
  11. EN 1998-1 (2004) Eurocode 8: design of structures for earthquake resistance, part 1: general rules, seismic actions and rules for buildings. CEN, Brussels, BelgiumGoogle Scholar
  12. Enescu D, Crisan E, Plavita R (1979) Determination of the geometric and dynamic focal parameters for some strong intermediate earthquakes in the Vrancea region. Rev Rou Géol Géophys Géogr Ser Géophys 23:39–49Google Scholar
  13. Ganas A, Grecu B, Batsi E, Radulian M (2010) Vrancea slab earthquakes triggered by static stress transfer. Nat Haz Earth Syst Sci 10:2565–2577CrossRefGoogle Scholar
  14. Georgescu ES, Pomonis A (2012) Building damage vs. territorial casualty patterns during the Vrancea (Romania) earthquakes of 1940 and 1977. In: Proceedings of the 15 world conference on earthquake engineering, Lisbon, Portugal, p 2123Google Scholar
  15. Gusev A, Radulian M, Rizescu M, Panza GF (2002) Source scaling of intermediate-depth Vrancea earthquakes. Geophys J Int 151:879–889CrossRefGoogle Scholar
  16. Hurukawa N, Radulian M, Popa M (2008) Relocation of large intermediate-depth earthquakes in the Vrancea region, Romania, since 1934 and a seismic gap. Earth Planets Space 60:565–572CrossRefGoogle Scholar
  17. Ismail-Zadeh A, Matenco L, Radulian M, Cloetingh S, Panza G (2012) Geodynamics and intermediate-depth seismicity in Vrancea (the south-eastern Carpathians): current state-of-the art. Tectonophys 530–531:50–79CrossRefGoogle Scholar
  18. Kotke AR, Rathje EM (2009). Technical manual for Strata. PEER Report 2008/10, Pacific Earthquake Engineering Research Center, College of Engineering, University of California, BerkeleyGoogle Scholar
  19. Kronrod T, Radulian M, Panza G, Popa M, Paskaleva I, Radovanovich S, Gribovszki K, Sandu I, Pekevski L (2013) Integrated transnational macroseismic data set for the strongest earthquakes of Vrancea (Romania). Tectonophys 590:1–23CrossRefGoogle Scholar
  20. Pantea A, Constantin AP (2011) Reevaluated macroseismic map of Vrancea (Romania) earthquake occurred on November 10, 1940. Rom J Phys 56(3–4):578–589Google Scholar
  21. Pavel F (2015) Investigation on the stochastic simulation of strong ground motions for Bucharest area. Soil Dyn Earthq Eng 69:227–232CrossRefGoogle Scholar
  22. Pavel F, Vacareanu R (2015) Kappa and regional attenuation for Vrancea (Romania) earthquakes. J Seismol. doi: 10.1007/s10950-015-9490-3
  23. Pavel F, Vacareanu R, Arion C, Neagu C (2013) Analysis of ground motions recorded in Bucharest during recent Vrancea earthquakes. In: Vienna congress on recent advances in earthquake engineering and structural dynamics, Vienna, Austria, p 180Google Scholar
  24. Radu C (1974) Contribution a l’étude de la sismicité de la Roumanie et comparison avec la sismicité de sud-est de la France. Ph.D. thesis, Université Strasbourg, FranceGoogle Scholar
  25. Stucchi M, Rovida A, Gomez Capera AA, Alexandre P, Camelbeeck T, Demircioglu MB, Gasperini P, Kouskouna V, Musson RMW, Radulian M, Sesetyan K, Vilanova S, Baumont D, Bungum H, Fäh D, Lenhardt W, Makropoulos K, Martinez Solares JM, Scotti O, Živčić M, Albini P, Batllo J, Papaioannou C, Tatevossian R, Locati M, Meletti C, Viganò D, Giardini D (2013) The SHARE European earthquake catalogue (SHEEC) 1000–1899. J Seismol 17:523–544CrossRefGoogle Scholar
  26. Vacareanu R, Radulian M, Iancovici M, Pavel F, Neagu C (2015) Fore-arc and back-arc ground motion prediction model for Vrancea intermediate depth seismic source. J Earthq Eng 19(3):535–562CrossRefGoogle Scholar
  27. Wald DJ, Allen TI (2007) Topographic slope as a proxy for seismic site conditions and amplification. Bull Seismol Soc Am 97(5):1379–1395CrossRefGoogle Scholar
  28. Wenzel F, Achauer U, Enescu D, Kissling E, Russo R, Mocanu V, Musacchio G (1998) Detailed look at final stage of plate break-off is target of study in Romania. EOS Trans AGU 79(48):589–600CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media Dordrecht 2015

Authors and Affiliations

  1. 1.Seismic Risk Assessment Research CenterBucharestRomania

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